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Current system
17575+2759
HO 423
HD 163949


Nearby doubles
9' : 17578+2751
ALL 2

16' : 17577+2815
HO 424

37' : 17582+2724
HO 425

50' : 17564+2846
GRV 971

59' : 17549+2713
TDT 568AB

61' : 17541+2721
BVD 125

64' : 17549+2852
CBL 163

70' : 17524+2805
KPP2487

76' : 18032+2813
AZC 103

76' : 18033+2751
ES 470

79' : 17518+2814
STF2239

83' : 17525+2712
HJ 1307

86' : 17525+2707
UC 3434

87' : 18009+2646
TDT 635

91' : 17567+2929
D 17

93' : 17573+2627
BRT 179

94' : 17594+2929
STF2247AB

94' : 18031+2702
TDT 653

96' : 18047+2750
SLE 109

96' : 17556+2627
TDT 576

98' : 18009+2633
STF2263

98' : 17517+2700
GRV 968

102' : 17589+2620
COU 808

102' : 17511+2704
YSC 240

104' : 18006+2934
LDS6413

105' : 18018+2631
SLE 107



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17575+2759 HO 423 (HD 163949)

 
 
17h 57m 34.79s +27° 59' 31.5" P.A. 293.00 sep 4.7 mag 8.95,11.47 Sp F6V dist. 215.52 pc (703.03 l.y.)
 
 
Coord 2000 17575+2759 Discov num HO  423 Comp Coord arcsec 2000 17 57 34.79 +27 59 31.5
Date first 1890 Date last 2016 Obs 21
Pa first 292 Pa last 293.3 P.A. Now (θ) 293.3°
Sep first 4.5 Sep last 4.726 Sep. Now (ρ) 4.726"
Mag pri 8.95 Mag sec 11.47 delta mag (ΔM) 2.52 Spectral class F6V (yellow-white)
Pri motion ra +012 Sec motion ra -050
Pri motion dec -047 Sec motion dec -018
Notes
rPM=1.288
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 163949 Constellation Hercules SAO 85581 HIP 87920
Tycho2 2098-01024-1 Gaia DR2 4584195689411545088 HD 163949 ADS 10933
BD BD+28 2872 Distance 215.52 Distance ly 703.03
 
 
WDS 17575+2759 HO 423 (HD 163949) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ho_1883 Ma j Hough, G.W. 1883MNRAS..43..371H
Ho_1883 MNRAS 43, 371, 1883 (data also in Ho_1890) 1890AN....125....1H
Ho_1884 Ma j Hough, G.W. 1884MNRAS..44..365H
Ho_1884 MNRAS 44, 365, 1884 (data also in Ho_1890) 1890AN....125....1H
Ho_1885 Ma j Hough, G.W. 1885MNRAS..45..417H
Ho_1885 MNRAS 45, 417, 1885 (data also in Ho_1890) 1890AN....125....1H
Ho_1886 Ma j Hough, G.W. 1886MNRAS..46..393H
Ho_1886 MNRAS 46, 393, 1886 (data also in Ho_1890) 1890AN....125....1H
Ho_1887 Ma j Hough, G.W. 1887AN....116..273H
Ho_1887 AN 116, 273, 1887
Ho_1890 Ma j Hough, G.W. 1890AN....125....1H
Ho_1890 AN 125, 1, 1890
Ho_1890b Ma j Hough, G.W. 1890AJ......9..177H
Ho_1890b AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) 1890AN....125....1H
Ho_1894a Ma - Hough, G.W. 1894MNRAS..54..251H
Ho_1894a MNRAS 54, 251, 1894
Ho_1894b Ma j Hough, G.W. (HO 304 - 490) 1894AN....135..281H
Ho_1894b AN 135, 281, 1894
Ho_1894c Ma - Hough, G.W. (measure by Dembowski, H.) 1894AN....135..281H
Ho_1894c AN 135, 281, 1894
Ho_1899a Ma j Hough, G.W. 1899AN....149..65H
Ho_1899a AN 149, 65, 1899
Ho_1899b Ma - Hough, G.W. (measure by Burnham, S.W.) 1899AN....149..65H
Ho_1899b AN 149, 65, 1899
Ho_1907 Ma - Hough, G.W. 1907PFAO....3c...1D
Ho_1907 Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A Ma - Hough, G.W. 1932QB821.A43......
Ho_1932A cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17575+2759 HO 423 2003 15 295 4.7 8.95 11.47 F6V D 175734.79+275931.5
17575+2759 HO 423 2013 17 293 4.5 8.95 11.47 F6V 175734.79+275931.5
17575+2759 HO 423 2015 18 292 4.7 8.95 11.47 F6V 175734.79+275931.5
17575+2759 HO 423 2016 21 293 4.7 8.95 11.47 F6V 175734.79+275931.5

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 17575+2759 HO 423 (HD 163949) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17575+2759 HO 423 (HD 163949) : MEASURES
 
 
No records found.

 
 
WDS 17575+2759 (HD 163949) : VIRTUAL EYEPIECE
 
 

17575+2759 HO 423A mag 8.95 Sp F6V 17575+2759 HO 423B sep 4.3 P.A. 296.00 mag 11.47 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17575+2759 (HD 163949) : ALADIN DSS IMAGE @ 17h 57m 34.79s +27° 59' 31.5"
 
 
 
 
WDS 17575+2759 HO 423 (HD 163949) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17575+2759 HO 423 distance=0' 17578+2751 ALL 2 distance=9' 17577+2815 HO 424 distance=16' 17582+2724 HO 425 distance=37' 17564+2846 GRV 971 distance=50' 17549+2713 TDT 568AB distance=59' 17549+2713 TDT 568AC distance=59' 17541+2721 BVD 125 distance=61' 17549+2852 CBL 163 distance=64' 17524+2805 KPP2487 distance=70' 18032+2813 AZC 103 distance=76' 18033+2751 ES 470 distance=76' 17518+2814 STF2239 distance=79' 17525+2712 HJ 1307 distance=83' 17525+2707 UC 3434 distance=86' 18009+2646 TDT 635 distance=87' 17567+2929 D 17 distance=91' 17573+2627 BRT 179 distance=93' 17594+2929 COU1003Aa,Ab distance=94' 17594+2929 STF2247AB distance=94' 17594+2929 WAL 88AC distance=94' 18031+2702 TDT 653 distance=94' 18047+2750 SLE 109 distance=96' 17556+2627 TDT 576 distance=96' 18009+2633 STF2263 distance=98' 17517+2700 GRV 968 distance=98' 17589+2620 COU 808 distance=102' 17511+2704 YSC 240 distance=102' 18006+2934 LDS6413 distance=104' 18018+2631 SLE 107 distance=105' 17559+2943 AZC 102 distance=106' 17520+2917 AZC 101 distance=107' 17508+2701 CBL 72 distance=108' 17568+2613 KPP4070 distance=108' 18047+2707 ES 471AB distance=108' 18047+2707 ES 471AC distance=108' 18047+2707 SLE 106AD distance=108' 18047+2707 SLE 106AE distance=108' 18047+2707 SLE 106AF distance=108' 18059+2759 KPP3327 distance=111' 18010+2617 BU 1461 distance=113' 18025+2931 NSN 701 distance=113' 18026+2931 LDS4771 distance=113' 17502+2704 TDT 526 distance=114' 18039+2639 HO 426 distance=117' 18021+2620 SLE 90 distance=117' 17541+2949 AC 9 distance=119' 17532+2617 TDT 555 distance=119' 17529+2941 AC 8 distance=119' 18025+2619 HO 564AB distance=121' 18025+2619 HO 564AC distance=121' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 17575+2759 HO 423 293 4.7
Show 17578+2751 ALL 2 206 18.9 9
Show 17577+2815 HO 424 204 1.4 16
Show 17582+2724 HO 425 144 5.5 37
Show 17564+2846 GRV 971 237 73.0 50
Show 17549+2713 TDT 568 AB 2 0.5 59
Show 17549+2713 TDT 568 AC 90 1.8 59
Show 17541+2721 BVD 125 32 48.3 61
Show 17549+2852 CBL 163 244 41.5 64
Show 17524+2805 KPP2487 23 22.3 70
Show 18032+2813 AZC 103 146 14.1 76
Show 18033+2751 ES 470 208 8.3 76
Show 17518+2814 STF2239 319 2.4 79
Show 17525+2712 HJ 1307 321 37.3 83
Show 17525+2707 UC 3434 30.3 86
Show 18009+2646 TDT 635 229 0.6 87
Show 17567+2929 D 17 130 23.9 91
Show 17573+2627 BRT 179 74 2.2 93
Show 17594+2929 COU1003 Aa,Ab 359 0.1 94
Show 17594+2929 STF2247 AB 188 11.6 94
Show 17594+2929 WAL 88 AC 230 56.1 94
Show 18031+2702 TDT 653 26 0.7 94
Show 18047+2750 SLE 109 79 9.7 96
Show 17556+2627 TDT 576 216 0.5 96
Show 18009+2633 STF2263 158 7.7 98
Show 17517+2700 GRV 968 304 26.0 98
Show 17589+2620 COU 808 155 0.9 102
Show 17511+2704 YSC 240 153 0.4 102
Show 18006+2934 LDS6413 105 88.1 104
Show 18018+2631 SLE 107 205 13.3 105
Show 17559+2943 AZC 102 35 21.3 106
Show 17520+2917 AZC 101 270 22.6 107
Show 17508+2701 CBL 72 173 12.6 108
Show 17568+2613 KPP4070 76 1.4 108
Show 18047+2707 ES 471 AB 274 24.3 108
Show 18047+2707 ES 471 AC 44 24.3 108
Show 18047+2707 SLE 106 AD 244 88.5 108
Show 18047+2707 SLE 106 AE 43 183.4 108
Show 18047+2707 SLE 106 AF 340 129.9 108
Show 18059+2759 KPP3327 166 2.9 111
Show 18010+2617 BU 1461 185 23.0 113
Show 18025+2931 NSN 701 266 16.5 113
Show 18026+2931 LDS4771 251 16.6 113
Show 17502+2704 TDT 526 146 0.8 114
Show 18039+2639 HO 426 230 11.7 117
Show 18021+2620 SLE 90 266 13.3 117
Show 17541+2949 AC 9 242 1.0 119
Show 17532+2617 TDT 555 260 0.9 119
Show 17529+2941 AC 8 304 0.1 119
Show 18025+2619 HO 564 AB 326 98.5 121
Show 18025+2619 HO 564 AC 21 92.9 121

 
 
WDS 17575+2759 : COMPONENTS
 
 
  A
B pa=296.0°
sep=4.26"
 
 
17575+2759 A
 
 
Componente originario normalizzato AB Name HD 163949 Coord arcsec 2000 175734.79+275931.5 Mag 8.95
Spectral class F6V (yellow-white) PmRA 12.00 PmDE -47.0 SAO 85581
HIP 87920 Tycho2 2098-01024-1 HD 163949 ADS 10933
BD BD+28 2872
Tycho2
Tycho2 2098-01024-1 Pflag RAmdeg 269.39493706 DEmdeg 27.99209611
PmRA 27.0 PmDE -50.6 E RAmdeg 9 E DEmdeg 8
E pmRA 2.0 E pmDE 1.8 EpRAm 1991.13 EpDEm 1991.17
Num 4 Q RAmdeg 8.7 Q DEmdeg 3.8 Q pmRA 8.9
Q pmDE 3.8 BTmag 9.425 E BTmag 0.018 VTmag 8.950
E VTmag 0.014 Prox 47 TYC T HIP 87920
CCDM A RAdeg 269.39487222 DEdeg 27.99221194 EpRA 1990 1.64
EpDE 1990 1.64 E RAdeg 8.5 E DEdeg 8.1 Posflg
Corr 0.1
SAO
SAO 85581 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 -0.051 Vmag 8.5 SpType G5
Double code Source 34 CatNum 8559 DM BD+28 2872
DMcomp BDsup HD 163949 M HD 0
GC RA1950rad 4.69321999 DE1950rad 0.4886374 PmRA2000 -0.0008
PmDE2000 -0.051
Hipparcos
Catalog H HIP 87920 Proxy H RAhms 17 57 34.77
DEdms +27 59 32.0 Vmag 8.82 VarFlag R Vmag G
RAdeg 269.395 DEdeg 27.9922 AstroRef A Plx 5.08
CCDM 17576+2800 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP AB
Theta 293 Rho 4.739 HD 163949 BD BD+28 2872
CD CP Dm number +28 2872 VIred 0.54
SpType F6V R SpType Coord arcsec 2000 175734.77+275932.0
Hipparcos 2
HIP 87920 Sn 15 So 3 Nc 2
RArad 4.7018275164 DErad 0.4885563347 Plx 4.64 PmRA 11.62
PmDE -42.43 E RArad 0.76 E DErad 0.91 E Plx 1.16
E pmRA 0.99 E pmDE 0.99 Hpmag 8.9108 E Hpmag 0.0019
SHp 0.023 VA 0 BV 0.47 E BV 0.015
VI 0.54
 
 
17575+2759 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 175734.50+275933.4 Mag 11.47 PmRA -50.00
PmDE -18.0 Calc delta mag 2.52 Calc coord yes